package Day27;

import java.math.BigDecimal;
import java.util.Arrays;
import java.util.Scanner;

/**
 * Creat with IntelliJ IDEA
 * Description
 * User: mamba24
 * Date: 2022-10-19
 * Time: 23:10
 * To BE A Better Person-2020-3-2
 */
public class TestDemo2 {
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        while(sc.hasNext()){
           BigDecimal[] num=new BigDecimal[3];
            for (int i = 0; i < 3; i++) {
                num[i]=sc.nextBigDecimal();
            }
            Arrays.sort(num);
            BigDecimal temp=num[0].add(num[1]);

            if(temp.compareTo(num[2]) > 0){
                System.out.println("Yes");
            }else{
                System.out.println("No");
            }

        }
    }


}
